


Hazardous Weather Outlook
Issued by NWS Chicago, IL
Issued by NWS Chicago, IL
839 FLUS43 KLOT 012124 AAA HWOLOT Hazardous Weather Outlook...UPDATED National Weather Service Chicago/Romeoville IL 424 PM CDT Tue Jul 1 2025 ILZ003>006-008-010>013-019>021-023-032-033-039-103>108-INZ001-002- 010-011-019-022130- Winnebago-Boone-McHenry-Lake IL-Ogle-Lee-De Kalb-Kane-DuPage- La Salle-Kendall-Grundy-Kankakee-Livingston-Iroquois-Ford- Northern Cook-Central Cook-Southern Cook-Northern Will- Southern Will-Eastern Will-Lake IN-Porter-Newton-Jasper-Benton- 424 PM CDT Tue Jul 1 2025 /524 PM EDT Tue Jul 1 2025/ This Hazardous Weather Outlook is for portions of north central Illinois...northeast Illinois and northwest Indiana. .DAY ONE...Tonight. No hazardous weather is expected at this time. .DAYS TWO THROUGH SEVEN...Wednesday through Monday. Wednesday and Thursday... Limited Thunderstorm Risk...with an associated: Level 1 of 5 Severe Thunderstorm Risk. Friday and Saturday... Limited Excessive Heat Risk. Saturday through Monday... Limited Thunderstorm Risk. DISCUSSION... Isolated gusty thunderstorms can`t be ruled out Wednesday and Thursday. Increasing heat and humidity is expected for the holiday weekend with periodic thunderstorm chances returning Saturday into early next week. .SPOTTER INFORMATION STATEMENT... Spotter activation will not be necessary through tonight. $$ LMZ740>745-022130- Winthrop Harbor to Wilmette Harbor IL- Wilmette Harbor to Northerly Island IL- Northerly Island to Calumet Harbor IL- Calumet Harbor IL to Gary IN-Gary to Burns Harbor IN- Burns Harbor to Michigan City IN- 424 PM CDT Tue Jul 1 2025 This Hazardous Weather Outlook is for portions of the Illinois nearshore waters of Lake Michigan and the Indiana nearshore waters of Lake Michigan. .DAY ONE...Tonight. No hazardous weather is expected at this time. .DAYS TWO THROUGH SEVEN...Wednesday through Monday. Wednesday and Thursday... Limited Thunderstorm Risk...with an associated: Level 1 of 5 Severe Thunderstorm Risk. Saturday through Monday... Limited Thunderstorm Risk. $$ Petr Visit us at www.weather.gov/chicago